OpenEuphoria

Re: for puzzlement

• Posted by petelomax Jan 11, 2019
• 1305 views

So you can look see how far the loop got before exiting, especially useful if it has multiple exit points, and/or if the whole point of the loop was just to set i anyway.

for i=1 to length(s) do 
    ... 
    if this then exit end if 
    ... 
    if that then exit end if 
    ... 
    if the other then exit end if 
    ... 
end for 
?i -- oops, error (unless you pre-declare it) 

The only other sensible alternative would be to pre-declare another variable say ifail and set it to i at the top of the loop, btdt.

Pete